#include <bits/stdc++.h>
using namespace std;
#define FILENAME "arena"

bool __stb;



bool __enb;

int main() {
    fprintf(stderr,"%.2lf MB\n",(&__stb-&__enb)/1024.0/1024.0);
    freopen(FILENAME ".in","r",stdin);
    freopen(FILENAME ".out","w",stdout);
    return 0;
}

//by Ke9_qux

// but if you wanna cry
// cry on my shoulder

// never gonna give give give you up

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